committing the header file fixes for protection against C++ name mangling. This is a hge commit. Please make sure that your files are protected right. There is some redundan protection in that the protection has been added right at teh beginning and at teh end ion some cases even thught typedefs are not requred to be protected. But this was done in order to have teh minimal change to the code base

This commit was SVN r3246.

include/mpi.h

@@ -28,6 +28,9 @@
 #define MPIO_Wait MPI_Wait
 #endif
 
+#if defined(c_plusplus) || defined(__cplusplus)
+extern "C" {
+#endif
 /*
  * Typedefs
  */
@@ -57,9 +60,6 @@ typedef struct ompi_status_public_t ompi_status_public_t;
 /*
  * User typedefs
  */
-#if defined(c_plusplus) || defined(__cplusplus)
-extern "C" {
-#endif
   typedef int (MPI_Copy_function)(MPI_Comm, int, void *,
                                   void *, void *, int *);
   typedef int (MPI_Delete_function)(MPI_Comm, int, void *, void *);
@@ -86,9 +86,6 @@ extern "C" {
   typedef int (MPI_Grequest_query_function)(void *, MPI_Status *);
   typedef int (MPI_Grequest_free_function)(void *);
   typedef int (MPI_Grequest_cancel_function)(void *, int); 
-#if defined(c_plusplus) || defined(__cplusplus)
-}
-#endif
 
 /*
  * Miscellaneous constants
@@ -340,9 +337,6 @@ enum {
 #define MPI_WIN_DUP_FN OMPI_C_MPI_WIN_DUP_FN
 #endif
 
-#if defined(c_plusplus) || defined(__cplusplus)
-extern "C" {
-#endif
 int OMPI_C_MPI_TYPE_NULL_DELETE_FN( MPI_Datatype datatype, int type_keyval,
                                     void* attribute_val_out, void* flag );
 int OMPI_C_MPI_TYPE_NULL_COPY_FN( MPI_Datatype datatype, int type_keyval, 
@@ -377,9 +371,6 @@ int OMPI_C_MPI_WIN_DUP_FN( MPI_Win window, int win_keyval, void* extra_state,
                            void* attribute_val_in, void* attribute_val_out,
                            int* flag );
 
-#if defined(c_plusplus) || defined(__cplusplus)
-}
-#endif
 
 /*
  * External variables
@@ -519,9 +510,6 @@ extern MPI_Fint *MPI_F_STATUSES_IGNORE;
 #define MPI_ERRORS_RETURN (&ompi_mpi_errors_return)
 
 
-#if defined(c_plusplus) || defined(__cplusplus)
-extern "C" {
-#endif
 
   /*
    * MPI API